FVXX21 KWBC 13050 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0050 UTC 13 MAR 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 90-040 WEST INDIES 16.7N 62.2W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3,000 FT (915M) . SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY. GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 12/1200 UTC UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: ERUPTION AROUND 13/0000 UTC. . DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED AN ERUPTION OF THE SOUFRIERE HILLS VOLCANO OCCURRED ABOUT 0000 UTC. ASH WAS ESTIMATED UP TO AT LEAST FL100. NO DIRECTION WAS GIVEN. GOES-8 MULTISPECTRAL IMAGERY THROUGH 0015 UTC SHOWS A POSSIBLE ASH CLOUD IN THE VICINITY OF AND SOUTH EAST OF THE VOLCANO. . TRAJECTORY: N/A . THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS www.ssd.noaa.gov/VAAC/messages.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED AT 13/0700 UTC OR SOONER IF ADDITIONAL INFORMATION BECOMES AVAILABLE. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN